Apparatus for forming solid fuels into films or bands



June 12, 1951 E. RlvocvHE Er-AL 2,556,217

APPARATUS FOR FORMING SOLID FUELS INTO FILMS 0R BANDS Filed NOV. 2l, 1947 Patented June 12, 1951 'UNI-T ED STATE-S foffF-Flce `APPARATUS FOR`lFORMING SOLID'FELS 'INTO FILMS -OR-LBANDS :Engeneltivoche and;'Mare.,Barsky,

ashngton; DIC.`

liquid -fuelS are inconvenient and- -dangerous as l0 theyare "volatile, yhave p a low firing. point so 'are explosive and are sub-ject; towvapor loss, ,and there is great difliculty :in preventing :losses :through leakages'and ,the-formation of explosive mixtures by the IgasesgevolvedJoyigthem. f-Moreoverfwith the processesknoWni-and used up to therpresem'h liquid fuels, after having theen transformedinto thesolid state, can no 'longer be brought back again to their formerliquid-stategandfguality.

The first or -gelatinizingstage of` the; process consists in ,mixing cold andswith strong agitation the -liquid jfuel `with `,one orfmoref gelatinizing rsubstances such keratine, gluten, algin, peetine and the like, during =a period -o =-15-.29 minutes thus` obtaining fa f'r-prwoduct rfhaving :a gelatinous consistency.

VThis Aemulsion'is then brought into contact fby the apparatus and methods :hereinafterrdescriloed,l

' with a bath" of vsuitable metallicsaltsrich -inoxy-l gen, which may -be peroxides, Isulphates-,wpersul- Dba-tes, chromates, ibichroma-tes, loorates,"perbor-v ates, manga-hates, 'pe-rmanganates; and the like, or ,tannin ox'ymethylene, vcalci-um chlora-te,- sodiumchlorate-etc.,.in-a liquid state.

In 'recent years, much progresser-has been -made in;A technique of producing fecngealed,v selid-gaso`` line and hydro-carbonsgenerally, and' processes are known in which presentation of'viiuid fuels in `such suiiicient ysolidiorin -to keep :them-in shape without special packing ,-.and -fsusceptibilityto transportation -to storage. These are/,essentially processes using ibasic raw products for-solidiriicaf-l tionof ralginates, algins and other #simi-lar prod,i ucts on which the action of metalliclsalts is used to provoke thef-jellicationvof VVtheealgin .soli-itions.l Most of lthese products. are presented in hall'1 or globule forms andfsizesi However, -eVe-nwith the present processes there-are-:still A`many vdiiiiculties to overcome.

First .1

acterized with a contracting-action-'and rejection' of supplemental or surplus Water. l'This 'is -a lori'g process as muchtime is required'forth-stabilizabf 2 tion of the product and the eliminationofithe moisturef'content offthel particles 4proportionate 'to thediameterorfthicknessofthefparticlesformed:

A standard content 'off'moisture in^`the"individ ual particles 'is'f'diflicultfto `obtain by"drying"in conventional vtray or conveyor sys'tems',V as 'tlie particles do nt'have "the samimisture *content In suchsystems, they fail tolacquirea homogeneous' drying of each particle but there occurs a general :loss of 'a vcertain. "perce'ntafgey 'of moisture from the Whole `VIria'ss lo'f '.'driedj particles 'Without the guaranteelthat each individual `particleiwill have the same Aell'nination 'ofmoisture .In vthe presentation* or production fof' the par-A ticles in spherical formation, like balls oglobules', an inevitable loss 'ofA volume'. 'of substantially' l25% averagel will*Geeuw-andthe"formation' of the'balls or globules of congealed fluid"fbyf'projectingf-"or dropping` tlf'e -fuel `-emulsion 'into'v "the ",Cdngealng bath causes-'ia substantial'evapcratonfloss."

Another` obj ect' lof' v'the invention is to'congeal' a petroleum'product 'fuel' 'into ya ribbon; orthe like in 'such-*a mamier'f'thatftherfis "substantially no vevap'oratziloss.

Anotherfobject'of'the inventionis to transform a 'liquid fuel *of lo i ringfpointmtoa congealed' mass of'hignringpoi'nt.

Another object of thei-'nvetion is fto'coi'igeal' liquid combustible' fuel'into "a l'rilolgon or the like of a predetermined :thickness fand -inoisture 'cohtent fto ypermit'easy and 'safe' 'handling and storage.` n l y Another obj ect yof 'the'inventin to form '.fuel int a ribb'onfor th'elike, Which -inay be hackedy to `give stregth'theet :or l"for sepa-ration'or stor-v agefpurposes. y y y Another "obj 'ect'oi ft e" invention is to provide mechan'ism"or`cong'al "g a petroleum product toa state' ivheei' Y' ther Qb'iefsihiewf the: inventer; enses @einem novel, features of 'construction and operationfas l'win fbe vmore` fully described and particularly pointed out in the specification, drawings and claims appended hereto.

In the drawings, which illustrate embodiments of the device and wherein like reference characters are used to designate like parts- Figure 1 isa longitudinal sectional Yelevation of one form of apparatus embodying the invention, the same showing a device wherein Ythe iilm of congealed fue] is lapped upon itself in a receptacle;

Figure 2 is a fragmentary sectional top plan view of a portion of the apparatus and a storage receptacle illustrated in Figure 1, the samebeing taken substantially in the plane as indicated by the line 2-2 of Figure 1;

Figure 3 is a transverse'y sectional elevation through a modied form of apparatus embodying the invention, the.,4 same showing a device wherein the lm of congealed fuel is wound in roller form; Y '-l- Figure 4 is a fragmentary, transverse sectional elevation through another modified form of apparatus for rolling the congealed fuel into roller form, the winding being done at a distance remote from the forming roll;

Figure 5 is an enlarged fragmentary sectional elevation through a form of conveyor adapted to be used with the apparatus illustrated in Figure 4;

Figure 6 is a transverse sectional elevation showing a form of cylinder on which the lm of congealed fuel is adapted to be wound, the same being adapted to be-utilized in the forms of device illustrated in Figures 3, 4 or 7;

Figure 7 is a fragmentary transverse sectional elevation through still another form of apparatus embodying the invention, wherein the congealed fuel is applied to a backing or reinforcing strip; and

Figure 8 is a fragmentary plan view of a form of spray device adapted for use with the herein disclosed apparatus.

Referring rst of all, more particularly, to the` form of construction illustrated in Figures 1 and 2, a receptacle such as the tank 20 is provided with an inlet 22 through which the liquid comprising the solidication salt bath is supplied to said tank, said salts being suitable metallic salts rich in oxygen, such as are enumerated above.

The tank is provided with re-circulating means such as pipe 24 connected to said tank and through pump 26 to pipe 28, which is in turn connected to said tank whereby the emulsion can be kept in motion by operation of the pump, it being understood that a suitable level of the bath isl maintained at all times.

A manifold 30 iswdisposed in said tank below the liquid level, said manifold being adapted to be oscillated from its midposition, shown in full lines, to the left and toward the right as viewed in AFigure 1, to the dotted line positions 32 and 34. Said manifold is provided with upwardly extending conduits 3G of any selected number, shown three, said conduits being provided adjacent the upper ends thereof with a slotted nozzle 38. The manifold 30 is also adapted to move from its top-most position as shown in dotted lines in Figure 1 to its lower-most position as shown at 4U.- Any suitable mechanism for causing the reciprocatory motion toward the right and left and the downward motion may be utilized, such as pneumatic, electric or manual means operated through suitable cranks and levers or through rollers and tracks vof the proper shape. It is noted that the manifold may be made to move only in a vertical direction in which case the nozzles are moved from side to side; or the manifold may be made to move only from side to side and the nozzles move vertically; or the nozzles may be made to move from side to side and vertically and the manifold may retain stationary.

Storage receptacles 42 are adapted to be supported as at 43 with respect to the nozzle 38 so that the nozzle may be moved from side to side of said receptacle as it is moving from the closed to the open end of said receptacle. The nozzle is of substantial T-shape and in its long dimension substantially fits the shape of the receptacle as illustrated in Figure 2.

v The manifold-30 is connected through a suitableflexible connection 44 and pipe 4S to a suitable source of emulsionsupply from which the emulsion is supplied to the manifold and nozzles under pressure, any suitable lValve or othercontrol means being provided. The fuel emulsion is rsuch as described in applications of Jean Pathus Labour, Serial No. 12,153 and 12,154, filed February 28, 1948, or in the French patent of De Granville, Patent No. 802,727, published September 14, 1936, and as noted above. In the upper-most position of the manifold 30 nozzles 38 are preferably below the toplevel of the bath' and the nozzles are adapted to be lowered to. a position such that the film formed in thev receptacles 42 and disposed in layers therein sub'-` stantially lls said receptacles. It will be seen that the emulsion supplied under pressure is supplied to the inside of the receptacles 42 which are completely filled with congealed emulsionv in a ribbon-like form, as upon contact with the bath solution the emulsion is immediately congealed into a film or ribbon-like shape, and the side to side and lowering movement of the nozzles causes a continuous lm to be formed wherein the layers overlap one another as illustrated by the dotted lines 48 as shown in Figurel. The receptacles are substantially lled when the manifold 30 reaches its lower dotted line position as shown at 40 in Figure l, at which time the supply of emulsii-led fuel is shut off so that no further fuel is supplied to the manifold 30. The receptacles can then be removed and new receptacles substituted therefor, and the manifold 30 returned to its raised position, whereby the process may then be repeated.

Referring now to the modification illustrated in Figure 3, a receptacle or tank 50 is shown for the reception of a vsuitable amount of solidication or congealing bath, such as above described,Y the tank 50 being provided with an inlet 52 forv supplying the metallic salts bath to the tank Eil.I Recirculation means may be provided in the form of pipe 54 connected at one end to said tank and the other end of pump 5B, the pump in turn being connected to pipe 58, the other end of which is connected to the tank 50. Forming cylinder or roll 60 is suitably mounted on its axis 62 and so disposed that a portionof the cylinder is immersed in the bath. Cylinder 60 is made of metal, porous stone or the like, that is, of a material which can be kept damp without being wet, in other words the material is such that the surface moisture on the cylinder can be readily controlled. In the embodiment shown, the cylinder 60 is adapted to rotate in a counter'- clockwise direction and a spray of fuel emulsion to be congealed is provided by means of the adjustable nozzle 64 disposed adjacent the eXitof roll |28 of reinforcing material |30. A strip of the reinforcing material |30 is passed around rotatable roller |32 into the bath in tank |I4 and around roller H6, the moisture content thereof being regulated by the roller |20. The material |30 is fed from roll |28 in a regulated manner, shaft 25 being properly synchronized with shaft l i8. The fuel emulsion is sprayed at |22 and the bath spray sprayed from nozzle |24 on said reinforcing means, and thereafter the reinforcing means and the lm formed thereon may be stripped by the stripper member |34 and fed in the direction of arrow |36 to form a suitable roll similar to those formed on sleeves 88, |02 or the lm may be stored in layers in suitable containers.

Drying means such as the banks of infra-red lights |38 are provided, the intensity of said lights being controlled by a suitable switching means. The infra-red lights may be disposed adjacent the surface of the cylinder as shown in Figure 7, or may be disposed at any selected place along the path of the lm to its storing means as at |33. This, of course, is true with respect to any of the modifications illustrated herein, the lights also being shown at |38 and |39, though it has been found that if a thin enough film is formed the drying means is not needed as the film is stabilized by the congealing salts as it is formed. j

With respect to sprays 38, i6, |22 and |24, these of course may be separate nozzles so arranged as to spray the material onto adjacent cylinders in a homogeneous manner, or may be in the form of a sleeve such as shown in Figure 8 having a continuous slit |42 extending for the length of the forming cylinder such as cylinder 60, the opening of the slit being controlled by suitable slides or shutters |44 which may be adjusted toward and away from each other, sleeve |40 being so mounted as to be moved to a Aselected position with respect to the cylinder to be sprayed, such as cylinder 60.

While the baths which were described above were described as the salts, and the fuel emulsion described as being sprayed, it is of course understood that the reverse may take place, it being necessary that the cylinder be rst sprayed with bath fluid prior to immersion in the fuel emulsion and thereafter sprayed with bath fluid.

1t is to be understood that this application is not to be limited by the exact embodiments of the device Shown, which are merely by way of illustration and not limitation as various and other forms of the device will, of course, be apparent to those skilled in the art Without departing Yfrom the spirit of the invention or the scope of the claims.

We claim:

l. In a device of the character described, the combination of a tank having a bath of fuel congealing material therein, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said tank, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a nlm of congealed fuel to be formed on said roller, means for stripping the congealed fuel film formed on said roller from said roller, said stripping means being positioned at a point intermediate said spray and the point at which said roller dips into said bath, and means for storing said iilm as a continuous member.

2. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing Ymaterial in said tank, a rotatable roller mounted ad' jacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said roller from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a film of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the film on the coated roller, means for stripping the congealed fuel film formed on said roller from said roller, and means for receiving and storing said film.

3. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said roller from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a film of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the film on the coated roller, means for stripping the congealed fuel film formed on said Yroller from said roller and means for receiving and storing said film, said last named means including a rotatable roller, a removable member on said last named roller on which said film is adapted to be Wound, said last named roller moving away from said first named roller as the film is wound thereon whereby the Wound film is always spaced from said rst named roller. Y

4. In a device of the character described, the combination` of a tank, an inlet for supplying and maintaining a bath of fuel congealing vmaterial in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said 'roller 'from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a film of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the film on the coated roller, rollers carried by said sprays, said sprays being movable to move said rollers toward and away from said first named roller, means for stripping the congealed fuel iilm formed on said roller from said roller, and means for receiving and storing said film.

5. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said roller from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a lm of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the film on the coated roller, rollers carried by said sprays, said sprays being movable to move said rollers toward and away from said rst named roller, means for stripping the congealed fuel film formed on said roller from said roller, and means for receiving Vcoated roller, means' fQr 'stripping/,the conglealed .'cluding a rotatablerollen a.A remoyablezzsleeye is supplied to. the storngf means toifeed.; tha-.111m

@Wei-157' 9" "Q f' *Sam* rellen dips into, said n ad anni.l etorinesnidgnlm, anni..laetnamenflneanezine t f t cluding a rotatable roller, a remo/ablemern- ,L en:saidlestmnarnedfelle en ...n/.ninnggs 'dem edentedfn bewnundeidlesnnalned ine eWeX-LfrQnxseienret .nemen .r e es hn .swonndthereen .Whereb ne always spaced .frelnpsedanns eme@ .6 ..In e device ef the-f ehareetennenen-.. materia.. eembinntienef tenllnninletferf nnn l and maintaining .n .batnpf .1.1e1n9ne-.. ter-ielhinsedtenkle.rotatable @11er-.H1914 ejacent. said.v .tank and. .disneed @when D9.. of the. periphery o`f.sesi ;9lle ns innei betri1 meane the pam 0f,.me em,

for eontrollinethe @neunte y I te tljbe-wom-sa'id .saidroller frern..the;;-batn .e melasjthimais.

me: liquid geene@ .wllery Canine-.nl eea1ecLfnel tene ferne 051 for sprayineinel een'eeellne.. ontheceated rollenxneensjnr s tr'pn y eea-.led fuel. l1n...fe`rn.1.ed en -sale;.rolle d rellen storing. Ineens: fenreeeivine en@ sten e. saidllrn, vand ccnveyngmeansfor conveyingv the lm-.tqsaidflast namedmmeans. A 7. In a device of thejcha: H ,Y combination-.of .a tank, en inlet, fer ennpl'yifng and maintaining. abetntenfnel eeneeeline. meter-iaLin saidtanl, ha otatable rgller n lol l.' adjacent saiatank.endndisposeel s0. that@ P9, f v ofthe peripheryI of. sa-id rcller dips Yintc saidebath. means Yin* thev path .O ,f Inevement. ni., seisl relle .for'ontrollng .the ernenntv pf.. liqn'q .carried by said-r0l1er f rQrn the ,baum` f nel-:selulm Spray adjacent 'said roller. forL dslpnay-iflne emulsion". fon theliquidcoated roller causinga film... ci gealed; fuel to loe'v .formedl ont said n roller,A a `epray for spraying fuel neneeelinematenelnnltne on. the coated'. nouer, menne ier. ...stripping fille congealed fuel film formed-cnsaid roller A f said ro11er,.s.toring means fQl-reey a .ngasad 1m; and conveying means. fo non ne thelnl.' .to Asaid. .lest .named malsenlldnngeyne meens beine mevebleasethe in snnnlie to thestoringmeans. tn feedthe f ilrn tc. eaid storing means in a predetermnedmannen .8.Y In-;.a. de.vice of the.A eharneten ,.deseri ombinntonof. a ta,r 1k an inlffyz .folie and kmaintaining j aarbath. of-fuelongea 1n terial in said. .tank,p .ag-.rotatablerollenvmou adjacentsaidl tank` and dispoysed sqgthata p Qr-y tion 'of thei'periphery :cfs 'saidrollelz dpsgintqsaid bath, means, in the,-pa th .0f, mov,enleritL oflsail rcllerffor controllingE the,` amount Qf- ,1iquid ied bysai'cl roller from' thezbath; afuel errllllsifln.k spray adjacent, snaidroller for.Y spraying. .emulsion onltne liquid coatedroller' causingqa lrrv 1. of.c0r1galed fuel to b e formed on saidzroller; a spray.- fo1f ;.s,p y;- `ingv fuel.. congeali'ng material on.- the illlxxigon` the fuel'lm formedonsaid rollerzirom,said;1:Q 1ler, l91:1 storingmeans. for; receiving and storing, saidtglm, of; cgng led and conveyngmeans for conveying. the film; to K,affSprayfor`sp y, I saidxlast. named means, V.said storing meansginthe en ,t

thereonon Which the'lm is adapted vto:v be Wound, said: conveying' means beingmovable as the ylm in a substantially tangential mann'ertofthe Wound 9.v Ina device. of the character described,jth`e elm Wpundalheeon Whene- 'combination 'of a tar'il'guaninletfor4 supplying f.. n ,Y f sralnzaysi sbacedffnom said 'terial' iny said.v tank, `a rotatable; roller mounted :"12- l andmaintaining 'a' bathll ofuellcongealngzsmar v e. er des live and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means for supplying a flexible backing to said roller at a point prior to dipping into said bath in such a manner that said backing is disposed in close proximity with said roller, means in the path of movement of said roller and backing after they have left said-bath to control the amount of liquid carried by said roller and backing from said bath, a fuel emulsion spray adjacent said first named roller for spraying emulsion on said bath coated backing causing a lm of congealed fuel to be formed on said backing, a spray for spraying fuel congealing material on the lm on the backing, rollers carried by said sprays, said sprays being movable to move said rollers toward and away from said first named roller, means for stripping the hn and backing from said first named roller, and means for receiving and storing said backed films.

13. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller-mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means for supplying a flexible backing to said roller at la point prior to dipping into said bath in such a manner that said backing is disposed in close proximity with said roller, means in the pathl of movement of said roller and backing after they have left said bath to control the amount of liquid carried by said roller and backing from said bath, a fuel emulsion spray adjacent said first named roller for spraying emulsion on said bath coated backing causing a film of congealed fuel to be formed on said backing, a spray for spraying fuel congealing material on the film on the backing, rollers carried by said sprays, said sprays being movable to move said rollers toward and away from said first named roller, storing means for receiving'and storing said backed lm, and conveying means for conveying the backed film to the storing means.

14. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the Vperiphery of said roller dips into said bath, means for supplying a iiexible backing to said roller at a point prior to dipping into said bath in such a manner that said backing is disposed in close proximity with said roller, means in the path of movement of said roller and backing after they have left said bath to control the amount of liquid carried by said roller and backing from said bath, a fuel emulsion spray adjacent said first named roller for spraying emulsion on said bath coated backing causing a film of congealed fuel to be formed on said backing, a spray for spraying fuel congealing'material on the film on the backing, rollers carried by said sprays, said sprays being movable to move said rollers toward and away from -said first named roller, storing means for receiving and storing said backed lm, conveying means for conveying the backed lm to the storing means, said storing means including a rotatable roller, a removable sleeve thereon on which the backed film is adapted to be wound, said conveying means being movable as the backed film is sprayed to the 'storing means to feed the backed lm in a subl2 i'iantially tangential manner to the Wound backed l5. In a device of the character described, the combination of a tank, an inlet for supplyingl and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said roller from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a lm of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the film on the coated roller, means for stripping the congealed fuel film formed on said roller from said roller, storing means for receiving and storing said film, and conveying means for conveying the film to said last named means, said conveying means being movable as the film is supplied to the storing means to feed the nlm to said storing means in a predetermined manner, said conveying means comprising a fixed member having spaced rollers thereon, the axes of said rollers being below the surface of said fixed member.

16. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said roller from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a lm of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the film on the coated roller, means for stripping the congealed fuel film formed on said roller from said roller and means for receiving and storing said film, said sprays comprising a fluid conducting member having an elongated outlet therein for spraying the fluid on said rst Anamed roller, and adjustable shutter means for varying the size of said opening.

17. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said roller from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a film of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the lm on the coated roller, means for stripping the congealed fuel lm formed on said roller from said roller and means for receiving and storing said film, and drying means adjacent the path of said film.

18. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means in the path of movement of said roller for controlling the amount of liquid carried by said roller from the bath, a fuel emulsion spray adjacent said roller for spraying emulsion on the liquid coated roller causing a film of congealed fuel to be formed on said roller, a spray for spraying fuel congealing material on the film on the coated roller, means for stripping the congealed fuel lm formed on said roller from said roller, storing means for receiving and storing said film, conveying means for conveying the lm to said last named means, and drying means adjacent the path of said film.

19. In a device of the character described, the combination of a tank, an inlet for supplying and maintaining a bath of fuel congealing material in said tank, a rotatable roller mounted adjacent said tank and disposed so that a portion of the periphery of said roller dips into said bath, means for supplying a exible backing to said roller at a point prior to dipping into said bath in such a manner that said backing is disposed in close proximity with said roller, means in the path of movement of said roller and backing after they have left said bath to control the amount of liquid carried by said roller and backing from said bath, a fuel emulsion spray adjacent said rst named roller for spraying emulsion on said bath coated backing causing a lm of congealed fuel to be formed on said backing, a spray for spraying fuel congealing material on the film on the backing, means for stripping the film and backing from said rst named roller, means for receiving and storing said backed lm, and drying means adjacent the path of said film.

EUGENE RIVOCHE.

MARIE BARSKY.

REFERENCE S CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,590,999 Czapek et al June 29, 1926 2,045,348 Dreyfus v June 23, 1936 FOREIGN PATENTS Number Country Date 405,691 Great Britain Feb. 12, 1934 

